It's a Bass for guitarists. No, wait, it's a guitar for bassists. No... However you choose to view it, the Silhouette Bass is a unique instrument, capable of a wide range of tonal colors not shared by any other axe. This short scale 6-string bass sounds as good as it looks, and makes an excellent addition to any musician's arsenal. <---"overview and specs"

Not really. Baritone guitars are usually tuned B-B or A-A (that is, a 4th or a 5th below standard guitar tuning). Scale length for a baritone guitar is usually somewhere between 26-28", I think.

However, the Bass VI and the Silhouette and other instruments of this type (I think Danelectro makes one, among others) are tuned an octave below guitar, EADGBE. Scale lenght is usually somewhere around 29-30", but the pickups and string spacing are more like a guitar than a bass. Maybe you'd cal it a "octave guitar"?